WO2021088939A1 - 协议切换方法及装置、电子设备、计算机可读介质 - Google Patents

协议切换方法及装置、电子设备、计算机可读介质 Download PDF

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Publication number
WO2021088939A1
WO2021088939A1 PCT/CN2020/126842 CN2020126842W WO2021088939A1 WO 2021088939 A1 WO2021088939 A1 WO 2021088939A1 CN 2020126842 W CN2020126842 W CN 2020126842W WO 2021088939 A1 WO2021088939 A1 WO 2021088939A1
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protocol
physical layer
local
synchronized
switching method
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PCT/CN2020/126842
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English (en)
French (fr)
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王翔
张海峰
樊成双
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中兴通讯股份有限公司
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Publication of WO2021088939A1 publication Critical patent/WO2021088939A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/08—Protocols for interworking; Protocol conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a protocol switching method and device, electronic equipment, and computer-readable media.
  • the 4th Generation Mobile Networks (4G) and the 5th Generation Mobile Networks (5G) at the same time may be covered by the 4th Generation Mobile Networks (4G) and the 5th Generation Mobile Networks (5G) at the same time.
  • the fronthaul interface protocol used by 4G is Common Public Radio Interface (CPRI)
  • CPRI Common Public Radio Interface
  • eCPRI Enhanced Common Public Radio Interface
  • AAU array Antenna Unit
  • BBU Baseband Processing Unit
  • the embodiments of the present application provide a protocol switching method and device, electronic equipment, and computer-readable media.
  • the embodiment of the application provides a protocol switching method, including: obtaining the protocol running status of the physical layer of the local end; judging whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the running status of the protocol; the physical layer of the local end and the physical layer of the opposite end When not synchronized, switch the interface protocol.
  • An embodiment of the present application provides a protocol switching device, which includes: an acquisition module for acquiring the protocol running status of the physical layer of the local end; a judging module for judging whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the protocol running status; The switching module is used to switch the interface protocol when the physical layer of the local end is not synchronized with the physical layer of the opposite end.
  • An embodiment of the present application provides an electronic device, which includes: one or more processors; a storage device on which one or more programs are stored. When one or more programs are executed by one or more processors, one Or multiple processors implement the protocol switching method as described above.
  • the embodiment of the present application provides a computer-readable medium on which a computer program is stored, and the program is executed by a processor to implement the protocol switching method described above.
  • FIG. 1 is a flowchart of a protocol switching method in the first embodiment of this application
  • FIG. 2 is a flowchart of a protocol switching method in the second embodiment of this application.
  • FIG. 3 is a flowchart of a protocol switching method in the third embodiment of this application.
  • FIG. 4 is a block diagram of a protocol switching device in the fourth embodiment of this application.
  • FIG. 5 is a block diagram of an exemplary network element connection relationship in the fourth embodiment of this application.
  • FIG. 6 is a block diagram of another exemplary network element connection relationship in the fourth embodiment of this application.
  • FIG. 7 is a block diagram of yet another exemplary network element connection relationship in the fourth embodiment of this application.
  • the protocol switching command sent by the BBU cannot be transmitted to the AAU normally, so that the AAU cannot normally identify the current used by the BBU.
  • the communication connection between the AAU and the BBU cannot be established normally, which in turn makes the communication network signal unable to be transmitted to the user normally, and the user experience is poor.
  • the first embodiment of the present application relates to a protocol switching method. This method is used to adapt to changes in the communication environment and automatically match the interface protocol of the radio frequency device with the BBU, so as to reduce the time for establishing a communication connection and improve user experience.
  • Fig. 1 is a flowchart of the protocol switching method in this embodiment, and the method can be applied to AAU or radio frequency equipment.
  • the method may include the following steps.
  • step 101 the protocol running status of the local physical layer is acquired.
  • the protocol running status indicates whether the front-end interface protocol of the local device (such as AAU or radio frequency equipment) is consistent with the front-end interface protocol of the peer device.
  • the front-end interface protocol used by the local device is the CPRI protocol
  • the peer device The CPRI protocol is also used, which means that the front-end interface protocol of the local device is consistent with the front-end interface protocol of the peer device.
  • the front-end interface protocol used by the local device is the CPRI protocol
  • the protocol running state includes, but is not limited to, a synchronized state and an out-of-synchronization state.
  • the synchronization status can be used to characterize the consistency information between the physical layer of the local device and the physical layer of the opposite device, but also the out-of-synchronization status can be used to characterize the physical layer of the local device and the physical layer of the opposite device. Consistency information.
  • the above description of the protocol operation state is only an example, and other protocol operation states that are not exemplified are also within the protection scope of this application and will not be repeated here.
  • the protocol running status is obtained based on the synchronization identifier of the local physical layer.
  • the synchronization identifier of the local physical layer is used to indicate whether the physical layer of the local device is synchronized with the physical layer of the opposite device. For example, when the physical layer of the AAU and the physical layer of the BBU have been synchronized, the synchronization identifier indicates the synchronization state. Specifically, one bit can be used to indicate the state, for example, the synchronization flag is set to 1; otherwise, when the physical layer of the AAU is not synchronized with the physical layer of the BBU, the synchronization flag is indicated as an asynchronous state, for example, Set the synchronization flag to 0.
  • the synchronization identifier of the local physical layer represents the state of the physical layer of the local device itself, rather than the synchronization configuration information sent by the peer device.
  • the synchronization identifier can be obtained through the self-check of the local device, and then Determine the protocol running status of the local physical layer.
  • the local device does not receive the synchronization configuration information sent by the peer device, it can still adaptively interface with the peer device to interface with the peer device, saving time for establishing a communication connection between the two ends and improving efficiency.
  • step 102 it is determined whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the protocol running status.
  • the initial state of the front-end interface protocol of the local device can be set to a default protocol running state, for example, running under the CPRI protocol.
  • the local device needs to determine whether the physical layer of the local device is synchronized with the physical layer of the opposite device. When the physical layer of the local device and the opposite device are synchronized, it indicates the front-end interface of the local device.
  • the protocol matches the front-end interface protocol of the peer device; when the physical layer of the local device is not synchronized with the physical layer of the peer device, it means that the front-end interface protocol of the local device does not match the front-end interface protocol of the peer device.
  • the front-end interface protocol of AAU matches the front-end interface protocol of BBU, that is, the front-end interface used by both The protocol is consistent; otherwise, if the physical layer of the AAU is not synchronized with the physical layer of the BBU, it means that the front-end interface protocol of the AAU does not match the front-end interface protocol of the BBU, that is, the front-end interface protocols used by the two are inconsistent.
  • the front-end interface protocol is the CPRI protocol
  • the front-end interface protocol currently used by the BBU is the eCPRI protocol.
  • step 103 when the physical layer of the local end is not synchronized with the physical layer of the opposite end, the interface protocol is switched.
  • Protocol switching means switching the front-end interface protocol of the local device to the front-end interface protocol used by the opposite device, so that the two can communicate using the same interface protocol.
  • AAU needs to connect with BBU, and AAU knows through detection that the front-end interface protocol currently used by AAU is CPRI protocol, and the front-end interface protocol used by BBU is eCPRI protocol, so AAU needs to switch its front-end interface protocol to The eCPRI protocol makes the front-end interface protocol of the AAU and the BBU consistent, so that the AAU and the BBU simultaneously use the eCPRI protocol to establish a communication connection.
  • the protocol running status of the local physical layer is obtained; based on the protocol running status, it is judged whether the local physical layer is synchronized with the opposite physical layer; when the local physical layer is not synchronized with the opposite physical layer, the interface protocol is performed To adapt to changes in the communication environment, it reduces the time to establish a communication connection and saves time costs; moreover, the local device does not need to obtain the protocol configuration information of the peer device in advance, and can automatically perform protocol docking with the peer device This avoids the situation that the protocol configuration information of the peer device cannot be received and the communication connection cannot be established, thereby reducing the waste of resources and improving the user experience.
  • the second embodiment of the present application relates to a protocol switching method.
  • the second embodiment is roughly the same as the first embodiment.
  • the main difference is: after the interface protocol is switched, the protocol running status of the physical layer of the local end needs to be re-obtained, and the physical layer of the local end and the physical layer of the opposite end need to be re-obtained. Switch the interface protocol when synchronization is not possible until the physical layer of the local end and the physical layer of the opposite end are synchronized; keep the protocol after the last switch.
  • Fig. 2 is a flowchart of a protocol switching method in this embodiment, and the method can be applied to an array antenna unit or a radio frequency device.
  • the method may include the following steps.
  • step 201 the protocol running status of the local physical layer is acquired.
  • step 202 it is determined whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the protocol running status.
  • step 203 when the physical layer of the local end and the physical layer of the opposite end are not synchronized, the interface protocol is switched.
  • steps 201 to 203 in this embodiment are the same as those of steps 101 to 103 in the first embodiment, and will not be repeated here.
  • step 204 the protocol running status of the physical layer of the local end is re-obtained, and the interface protocol is switched when the physical layer of the local end cannot be synchronized with the physical layer of the opposite end, until the physical layer of the local end and the physical layer of the opposite end are synchronized; The protocol after a switchover.
  • the interface protocol needs to be switched all the time until the physical layer of the local device is synchronized with the physical layer of the peer device. End the interface protocol switching, and at the same time, save the interface protocol after the last switching to the local device, so that the local device can use the interface protocol to connect with the opposite device, and then complete the communication connection between the two.
  • the opposite device can be another local device or a control device such as a baseband processing unit. The above is only an example for the opposite device, and there is no restriction here. Any other device can communicate with the local device through the front-end interface protocol.
  • the network elements that establish communication are all within the protection scope of this application, and will not be repeated here.
  • interface protocol 1 when there are multiple interface protocols in the local device, such as interface protocol 1, interface protocol 2, interface protocol 3, etc., if it is detected that the physical layer of the local device is not synchronized with the physical layer of the opposite device, then It will switch cyclically between the above multiple interface protocols, that is, switch from interface protocol 1 to interface protocol 2, or switch from interface protocol 2 to interface protocol 3, or switch from interface protocol 3 to interface protocol 1, until this When the physical layer of the end device is synchronized with the physical layer of the opposite device, that is, when the interface protocol matches the interface protocol of the opposite device, the switching of the interface protocol ends. If the interface protocol after the last switch is interface protocol 3, then interface protocol 3 is subsequently used to connect with the peer device, and the communication connection between the two has been completed.
  • the local device cyclically switches the interface protocol until the physical layer of the local device Synchronize with the physical layer of the peer device, and then the local device will save and use the interface protocol after the last switch to establish a communication connection with the peer device, so that the local device does not need to obtain the protocol configuration information of the peer device in advance , It can automatically perform protocol docking with the peer device, avoiding the failure to receive the protocol configuration information of the peer device and failing to establish a communication connection, thereby reducing resource waste and improving user experience.
  • the third embodiment of the present application relates to a protocol switching method.
  • the second embodiment is roughly the same as the first embodiment, and the main difference is that after obtaining the interface protocol after the last handover, the running status of the protocol needs to be monitored in real time.
  • the protocol switching method specifically includes the following steps.
  • step 301 the protocol running status of the local physical layer is acquired.
  • step 302 it is determined whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the protocol running status.
  • step 303 is performed; otherwise, if it is determined that the physical layer of the local end and the physical layer of the opposite end have been synchronized, step 304 is performed.
  • step 303 the interface protocol is switched.
  • step 304 the switching of the interface protocol is ended; and the interface protocol after the last switching is maintained.
  • steps 301 to 304 in this embodiment are the same as those of steps 201 to 204 in the second embodiment, and will not be repeated here.
  • step 305 the protocol running status of the local physical layer is monitored in real time.
  • a timer needs to be started to periodically detect the protocol running status of the physical layer at the local end, that is, whether the physical layer at the local end is always synchronized with the peer device. This enables the local device to follow the interface protocol of the opposite device in real time to ensure that the interface protocol between the two remains consistent.
  • step 301 when a change in the protocol running state of the physical layer of the local end is monitored, step 301 is returned.
  • the local device When the local device detects a change in the protocol running status of the physical layer, that is, when it senses that the interface protocol of the peer device has changed, the local device can quickly leave the monitoring state, re-execute step 301, and then change the interface protocol. Make judgments to adapt to the dynamic changes of the interface protocol of the peer device and realize the adaptation of the interface protocol.
  • the interface protocol between the local device and the opposite device can be kept consistent in real time, so that the local device can adaptively communicate with the opposite device.
  • the communication connection is established to ensure the real-time update of the communication connection, and the situation that the communication connection cannot be established due to the failure to receive the protocol configuration information of the peer device is avoided, thereby reducing the waste of resources and improving the user experience.
  • the fourth embodiment of the present application relates to a protocol switching device.
  • the device refers to the related description of the first embodiment, and the repetitive parts will not be repeated. It is worth noting that the specific implementation of the device in this embodiment can also refer to the related description of the second or third embodiment, but it is not limited to the above three embodiments, and other unexplained embodiments are also protected by this device. Within range.
  • FIG. 4 is a block diagram of the protocol switching device in this embodiment.
  • the device mainly includes: an obtaining module 401 for obtaining the protocol running status of the physical layer of the local end; the judging module 402 is used for judging whether the physical layer of the local end is not based on the protocol running status. Synchronize with the physical layer of the opposite end; the switching module 403 is used to switch the interface protocol when the physical layer of the local end is not synchronized with the physical layer of the opposite end.
  • the protocol switching device further includes a monitoring module 404 for real-time monitoring of the operating status of the protocol.
  • FIG. 5 is an exemplary network element connection relationship diagram, specifically, the connection relationship diagram between the baseband processing unit 501 (BBU) and the array antenna unit 502 (AAU), where one of the BBU and AAU The maximum distance between the BBU and the AAU is 40 kilometers. The farther the distance between the BBU and the AAU is, the more difficult it is to obtain the BBU's interface protocol configuration information on the AAU side.
  • BBU baseband processing unit 501
  • AAU array antenna unit 502
  • FIG. 6 is another exemplary network element connection relationship diagram, where the AAU includes a judgment module 402 and a switching module 403, and the AAU and the BBU can communicate through different front-end interface protocols, for example, the AAU uses CPRI Protocol or eCPRI protocol to communicate with BBU.
  • the judgment module 402 obtains the synchronization status reported by the physical layer of the AAU, it can judge the synchronization status.
  • AAU needs to switch the interface protocol, that is, switch the front-end interface protocol of AAU from CPRI protocol to eCPRI protocol, or switch the front-end interface protocol of AAU from eCPRI protocol to CPRI protocol.
  • AAU This enables AAU to ensure that its front-end interface protocol type is consistent with the BBU's front-end interface protocol, without the need to obtain the BBU's protocol configuration information through other methods, and can use the switched front-end interface protocol to directly connect the front-end interface with the BBU, and Try to synchronize with the physical layer of the BBU.
  • the physical layer of the AAU is synchronized with the physical layer of the BBU, it means that the front-end interface protocol currently used by the AAU is consistent with the front-end interface protocol used by the BBU.
  • the AAU may also be as shown in FIG. 7 and consist of a judging module 402, a switching module 403, and a monitoring module 404.
  • the connection relationship of the network elements in Figure 7 is the same as that of Figure 6, except that the AAU also includes a monitoring module 404, which is used to monitor the protocol type of the front-end interface protocol used by the AAU in real time.
  • the AAU can quickly leave the monitoring state and enter the judgment module 402 for judgment, so that the AAU can use the blind detection technology, that is, it can directly communicate with the BBU without obtaining the protocol configuration information of the BBU through other methods in advance.
  • the BBU performs the docking of the front-end interface protocol, that is, realizes the adaptation of the front-end interface.
  • the judgment module is used to determine whether the physical layer of the local end is synchronized with the physical layer of the opposite end based on the protocol running status of the physical layer, so that the switching module switches the interface protocol when the physical layers of the devices at both ends are not synchronized, so as to adapt to The change of the communication environment saves time and cost; and the local device does not need to obtain the protocol configuration information of the peer device in advance, and can automatically perform protocol docking with the peer device, avoiding the failure to receive the protocol configuration information of the peer device.
  • the communication connection cannot be established, thereby reducing resource waste and improving user experience.
  • this embodiment is an example of a device corresponding to the first to third embodiments, and this embodiment can be implemented in cooperation with the first to third embodiments.
  • the related technical details mentioned in the first to third embodiments are still valid in this embodiment, and in order to reduce repetition, they will not be repeated here.
  • the related technical details mentioned in this embodiment can also be applied to the first to third embodiments.
  • modules involved in this embodiment are all logical modules.
  • a logical unit can be a physical unit, a part of a physical unit, or multiple physical units. The combination of units is realized.
  • this embodiment does not introduce units that are not closely related to solving the technical problems proposed by this application, but this does not mean that there are no other units in this embodiment.
  • An electronic device related to an embodiment of the present application includes: one or more processors; a storage device on which one or more programs are stored. When one or more programs are executed by one or more processors, One or more processors implement any one of the above-mentioned protocol switching methods.
  • An embodiment of the present application relates to a computer-readable medium having a computer program stored thereon, and when the program is executed by a processor, any one of the foregoing protocol switching methods is implemented.
  • the process described above with reference to the flowchart can be implemented as a computer software program.
  • the embodiments of the present application include a computer program product, which includes a computer program tangibly contained on a machine-readable medium, and the computer program includes program code for executing the method shown in the flowchart.
  • the computer program may be downloaded and installed from the network, and/or installed from a removable storage medium.
  • Such software may be distributed on a computer-readable medium, and the computer-readable medium may include a computer storage medium (or a non-transitory medium) and a communication medium (or a transitory medium).
  • the term computer storage medium includes volatile and non-volatile data implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Sexual, removable and non-removable media.
  • Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer.
  • communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media. .

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Abstract

本申请公开了一种协议切换方法及装置、电子设备、计算机可读介质，该方法包括：获取本端的物理层的协议运行状态；基于协议运行状态判断本端的物理层是否与对端的物理层同步；在本端的物理层与对端的物理层未同步时，进行接口协议的切换。

Description

协议切换方法及装置、电子设备、计算机可读介质
相关申请的交叉引用
本申请基于申请号为201911091932.0、申请日为2019年11月8日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以引入方式并入本申请。
技术领域
本申请实施例涉及通信领域，特别涉及一种协议切换方法及装置、电子设备、计算机可读介质。
背景技术
随着移动通信技术的发展，有些地区可能存在第四代移动通信网络(The 4th Generation Mobile Networks，4G)和第五代移动通信网络(The 5th Generation Mobile Networks，5G)同时覆盖的情况。但4G中的通信协议与5G中的通信协议存在差异，尤其体现在前传接口上，4G所使用的前传接口协议为通用公共无线电接口(Common Public Radio Interface，CPRI)，而在5G网络中，所使用的前传接口协议为加强通用公共无线电接口(Enhance Common Public Radio Interface，eCPRI)。
目前市场上存在多款阵列天线单元(Array Antenna Unit，AAU)能够支持4G/5G混模业务，该AAU能够根据基带处理单元(Band Based Unit，BBU发送的协议切换指令，来完成动态的前传接口协议的切换，有时AAU与BBU无法正常建立通信连接，导致用户体验差。
发明内容
本申请实施例提供一种协议切换方法及装置、电子设备、计算机可读介质。
本申请实施例提供一种协议切换方法，包括：获取本端的物理层的协议运行状态；基于协议运行状态判断本端的物理层是否与对端的物理层同步；在本 端的物理层与对端的物理层未同步时，进行接口协议的切换。
本申请实施例提供一种协议切换装置，包括：获取模块，用于获取本端的物理层的协议运行状态；判断模块，用于基于协议运行状态判断本端的物理层是否与对端的物理层同步；切换模块，用于在本端的物理层与对端的物理层未同步时，进行接口协议的切换。
本申请实施例提供一种电子设备，其包括：一个或多个处理器；存储装置，其上存储有一个或多个程序，当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现如上所述的协议切换方法。
本申请实施例提供一种计算机可读介质，其上存储有计算机程序，程序被处理器执行时实现如上所述的协议切换方法。
附图说明
附图用来提供对本申请实施例的进一步理解，并且构成说明书的一部分，与本申请的实施例一起用于解释本申请，并不构成对本申请的限制。通过参考附图对详细示例实施例进行描述，以上和其它特征和优点对本领域技术人员将变得更加显而易见，在附图中：
图1为本申请中的第一实施方式中的一种协议切换方法流程图；
图2为本申请中的第二实施方式中的一种协议切换方法流程图；
图3为本申请中的第三实施方式中的一种协议切换方法流程图；
图4为本申请中的第四实施方式中的一种协议切换装置方框图；
图5为本申请中的第四实施方式中的一个示例性网元连接关系方框图；
图6为本申请中的第四实施方式中的另一个示例性网元连接关系方框图；
图7为本申请中的第四实施方式中的再一个示例性网元连接关系方框图。
具体实施方式
为使本领域的技术人员更好地理解本申请的技术方案，下面结合附图对本申请提供的方法及装置、电子设备、计算机可读介质进行详细描述。
在下文中将参考附图更充分地描述示例实施例，但是示例实施例可以以不 同形式来体现且不应当被解释为限于本文阐述的实施例。反之，提供这些实施例的目的在于使本申请透彻和完整，并将使本领域技术人员充分理解本申请的范围。
本申请的说明书和权利要求书及上述附图中的术语“第一”和“第二”是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以使这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外，术语“包括”或“具有”及其任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。
除非另外限定，否则本文所用的所有术语(包括技术和科学术语)的含义与本领域普通技术人员通常理解的含义相同。还将理解，诸如那些在常用字典中限定的那些术语应当被解释为具有与其在相关技术以及本申请的背景下的含义一致的含义，且将不解释为具有理想化或过度形式上的含义，除非本文明确如此限定。
由于AAU相对于BBU的距离较远(一般两者之间的距离在几公里，甚至几十公里)，导致BBU发送的协议切换指令无法正常传输到AAU，使得AAU无法正常识别BBU当前所使用的前传接口协议，AAU和BBU之间无法正常建立通信连接，进而使得通信网络信号无法正常传输给用户，用户体验度差。
本申请的第一实施方式涉及一种协议切换方法。该方法用于自适应通信环境的变化，使射频设备的接口协议与BBU自动匹配，以减少建立通信连接时间，提升用户体验度。
下面对本实施方式中的方法的实现细节进行具体的说明，以下内容仅为方便理解本方案的实现细节，并非实施本方案的必须。
图1为本实施方式中的协议切换方法的流程图，该方法可应用于AAU或射频设备中。该方法可包括如下步骤。
在步骤101中，获取本端的物理层的协议运行状态。
其中，协议运行状态表示本端设备(例如AAU或射频设备)的前端接口协议是否与对端设备的前端接口协议一致，例如，本端设备所使用的前端接口协议是CPRI协议，而对端设备所使用的也是CPRI协议，则表示本端设备的前端 接口协议与对端设备的前端接口协议是一致的，否则，若本端设备所使用的前端接口协议是CPRI协议，而对端设备所使用的前端接口协议是eCPRI协议，则表示本端设备的前端接口协议与对端设备的前端接口协议是不一致的。在一些实施例中，协议运行状态包括但不限于同步状态和失步状态。
具体地，不仅可以使用同步状态来表征本端设备的物理层与对端设备的物理层的一致性信息，还可以使用失步状态来表征本端设备的物理层与对端设备的物理层的一致性信息。以上对于协议运行状态的说明，仅是举例说明，其他未举例的协议运行状态也在本申请的保护范围之内，在此不再赘述。
在一些实施例中，协议运行状态是基于本端的物理层的同步标识获得。
需要说明的是，本端的物理层的同步标识用于表示本端设备的物理层是否与对端设备的物理层同步。例如，当AAU的物理层与BBU的物理层已完成同步时，则该同步标识表示为同步状态。具体地，可使用一个比特来表示该状态，例如将该同步标识置位为1；否则，当AAU的物理层与BBU的物理层没有同步时，则该同步标识表示为非同步状态，例如可将该同步标识置位为0。
其中的本端的物理层的同步标识，表征的是本端设备自身的物理层的状态，而非对端设备发送的同步配置信息，通过本端设备的自检，可获取到该同步标识，进而确定本端的物理层的协议运行状态。使得在本端设备没有接收到对端设备发送的同步配置信息时，仍可以自适应的与对端设备进行接口协议的对接，节省两端之间建立通信连接的时间，提升效率。
在步骤102中，基于协议运行状态判断本端的物理层是否与对端的物理层同步。
需要说明的是，本端设备的前端接口协议的初始状态可设置为一个默认的协议运行状态，例如运行在CPRI协议下。当本端设备与对端设备进行对接时，本端设备需要判断本端的物理层是否与对端的物理层同步，当本端的物理层与对端的物理层已经同步时，表示本端设备的前端接口协议与对端设备的前端接口协议相匹配；当本端的物理层与对端的物理层没有同步时，表示本端设备的前端接口协议与对端设备的前端接口协议不匹配。
例如，当AAU需要与BBU进行对接时，若AAU的物理层没有与BBU的物理层完成正常的同步，则表示AAU的前端接口协议与BBU的前端接口协议匹配，即两者所使用的前端接口协议一致；否则，若AAU的物理层没有与BBU 的物理层同步，则表示AAU的前端接口协议与BBU的前端接口协议不匹配，即两者所使用的前端接口协议不一致，可能AAU当前使用的前端接口协议为CPRI协议，而BBU当前所使用的前端接口协议为eCPRI协议。
在步骤103中，在本端的物理层与对端的物理层未同步时，进行接口协议的切换。
需要说明的是，在本端的物理层与对端的物理层未同步时，表示本端设备的前端接口协议与对端设备的前端接口协议不匹配，两者无法建立正常的通信连接，需要进行接口协议的切换，即将本端设备的前端接口协议切换为对端设备所使用的前端接口协议，以使两者能够使用相同的接口协议进行通信。
例如，当AAU需要与BBU进行对接时，而AAU通过检测获知，AAU当前使用的前端接口协议为CPRI协议，而BBU所使用的前端接口协议为eCPRI协议，故AAU需要将其前端接口协议切换为eCPRI协议，使得AAU与BBU的前端接口协议一致，从而使AAU与BBU同时使用eCPRI协议建立通信连接。
在本实施方式中，获取本端的物理层的协议运行状态；基于协议运行状态判断本端的物理层是否与对端的物理层同步；在本端的物理层与对端的物理层未同步时，进行接口协议的切换，以适应通信环境的变化，减少了建立通信连接时间，节省了时间成本；而且，本端设备不需要事先获取到对端设备的协议配置信息，就能够自动与对端设备进行协议对接，避免了无法接收到对端设备的协议配置信息而无法建立通信连接的情况，从而减少了资源浪费，提升了用户体验度。
本申请的第二实施方式涉及一种协议切换方法。第二实施方式与第一实施方式大致相同，主要区别之处在于：在进行接口协议的切换之后，还需要重新获得本端的物理层的协议运行状态，并在本端的物理层与对端的物理层不能同步时切换接口协议，直至本端的物理层与对端的物理层完成同步为止；保持最后一次切换后的协议。
图2为本实施方式中协议切换方法的流程图，该方法可应用于阵列天线单元或射频设备中。该方法可包括如下步骤。
在步骤201中，获取本端的物理层的协议运行状态。
在步骤202中，基于协议运行状态判断本端的物理层是否与对端的物理层 同步。
在步骤203中，在本端的物理层与对端的物理层未同步时，进行接口协议的切换。
需要说明的是，本实施例中的步骤201～203，与第一实施方式中的步骤101～103的内容相同，在此不再赘述。
在步骤204中，重新获得本端的物理层的协议运行状态，并在本端的物理层与对端的物理层不能同步时切换接口协议，直至本端的物理层与对端的物理层完成同步为止；保持最后一次切换后的协议。
需要说明的是，当本端设备的物理层未与对端设备的物理层正常同步时，需要对接口协议一直进行切换，直到本端设备的物理层与对端设备的物理层同步时，才结束接口协议的切换，同时，将最后一次切换后的接口协议保存至本端设备中，以使本端设备能够使用该接口协议与对端设备进行对接，进而完成两者之间的通信连接，其中的对端设备可以是另一个本端设备，也可以是基带处理单元等控制设备，以上对于对端设备仅是举例说明，在此不做限制，其他任何能够通过前端接口协议与本端设备建立通信的网元都在本申请的保护范围内，在此不在赘述。
例如，当本端设备中存在多个接口协议时，例如，接口协议1、接口协议2、接口协议3等，若检测到本端设备的物理层未与对端设备的物理层同步时，则会在以上多个接口协议之间进行循环切换，即从接口协议1切换至接口协议2，或，从接口协议2切换至接口协议3，或，从接口协议3切换至接口协议1，直至本端设备的物理层与对端设备的物理层完成同步时，即该接口协议与对端设备的接口协议相匹配时，才结束该接口协议的切换。若最后一次切换后的接口协议为接口协议3，则后续使用接口协议3与对端设备进行对接，已完成两者之间的通信连接。
在本实施方式中，通过对本端的物理层的协议运行状态的判断，若确定本端的物理层与对端的物理层无法同步，则本端设备循环对接口协议进行切换，直到本端设备的物理层与对端设备的物理层同步为止，然后本端设备会保存并使用最后一次切换后的接口协议，与对端设备建立通信连接，使得本端设备不需要事先获取到对端设备的协议配置信息，就能够自动与对端设备进行协议对接，避免了无法接收到对端设备的协议配置信息而无法建立通信连接的情况， 从而减少了资源浪费，提升了用户体验度。
本申请的第三实施方式涉及一种协议切换方法。第二实施方式与第一实施方式大致相同，主要区别之处在于：在获取到最后一次切换后的接口协议之后，还需要实时监测协议运行状态。
如图3所示的协议切换方法，该方法具体包括以下步骤。
在步骤301中，获取本端的物理层的协议运行状态。
在步骤302中，基于协议运行状态判断本端的物理层是否与对端的物理层同步。
若确定本端的物理层与对端的物理层没有同步，则执行步骤303；否则，若确定本端的物理层与对端的物理层已完成同步，则执行步骤304。
在步骤303中，进行接口协议的切换。
在步骤304中，结束接口协议的切换；并保持最后一次切换后的接口协议。
需要说明的是，本实施例中的步骤301～304，与第二实施方式中的步骤201～204的内容相同，在此不再赘述。
在步骤305中，实时监测本端的物理层的协议运行状态。
需要说明的是，在完成接口协议的切换后，还需要启动定时器，定时检测本端的物理层的协议运行状态，即本端的物理层是否一直与对端设备保持同步。使得本端设备能够实时跟随对端设备的接口协议，以保证两者之间的接口协议保持一致。
在一些实施例中，在监测到本端的物理层的协议运行状态发生变化时，返回步骤301。
当本端设备监测到物理层的协议运行状态发生变化时，即感知到对端设备的接口协议发生了变化时，本端设备能够迅速从监控状态脱离，重新再执行步骤301，进而对接口协议进行判断，以适应对端设备的接口协议的动态变化，实现接口协议的自适应。
在本实施方式中，通过对本端的物理层的协议运行状态的实时监测，保证了本端设备与对端设备之间的接口协议能够实时保持一致，使得本端设备能够自适应的与对端设备建立通信连接，以保证通信连接的实时更新，避免了无法接收到对端设备的协议配置信息而无法建立通信连接的情况，从而减少了资源 浪费，提升了用户体验度。
上面各种方法的步骤划分，只是为了描述清楚，实现时可以合并为一个步骤或者对某些步骤进行拆分，分解为多个步骤，只要包括相同的逻辑关系，都在本专利的保护范围内；对算法中或者流程中添加无关紧要的修改或者引入无关紧要的设计，但不改变其算法和流程的核心设计都在该专利的保护范围内。
本申请的第四实施方式涉及一种协议切换装置，该装置的具体实施可参见第一实施方式的相关描述，重复之处不再赘述。值得说明的是，本实施方式中的装置的具体实施也可参见第二或第三实施方式的相关描述，但不局限于以上三个实施例，其他未说明的实施例也在本装置的保护范围之内。
如图4为本实施方式中的协议切换装置的方框图，该装置主要包括：获取模块401用于获取本端的物理层的协议运行状态；判断模块402用于基于协议运行状态判断本端的物理层是否与对端的物理层同步；切换模块403用于在本端的物理层与对端的物理层未同步时，进行接口协议的切换。
在一些实施例中，协议切换装置还包括监控模块404，该监控模块404用于实时监测协议运行状态。
在一些具体实现中，图5为一个示例性网元连接关系图，具体地，是基带处理单元501(BBU)与阵列天线单元502(AAU)之间的连接关系图，其中，BBU和AAU之间的最大距离为40公里，当BBU与AAU之间的距离越远，在AAU侧要想获取到BBU的接口协议配置信息的难度就越大。
具体地，图6为另一个示例性网元连接关系图，其中，AAU包含有判断模块402和切换模块403，并且AAU与BBU之间可通过不同的前端接口协议进行通信，例如，AAU通过CPRI协议或eCPRI协议与BBU进行通信。当判断模块402获取到AAU的物理层上报的同步状态时，可对该同步状态进行判断，若确定AAU的物理层与BBU的物理层已完成了同步，则表示此时AAU所使用的前端接口协议与BBU所使用的前端接口协议一致，无需进行接口协议的切换；否则，若确定AAU的物理层与BBU的物理层没有完成同步，则表示此时AAU所使用的前端接口协议与BBU所使用的前端接口协议不一致，因此，AAU需要进行接口协议的切换，即将AAU的前端接口协议由CPRI协议切换至eCPRI协议，或，将AAU的前端接口协议由eCPRI协议切换至CPRI协议。使得AAU 能够保证自身的前端接口协议类型与BBU的前端接口协议保持一致，而无需再通过其他方式获得BBU的协议配置信息，可以使用切换后的前端接口协议与BBU直接进行前端接口的对接，并尝试与BBU的物理层进行同步，最终当AAU的物理层与BBU的物理层同步时，则表示AAU当前所使用的前端接口协议与BBU所使用的前端接口协议一致。
在一个具体实现中，AAU还可以是如图7所示的，由判断模块402、切换模块403和监控模块404组成。图7中的网元连接关系与图6的网元连接关系一致，只是在AAU中还包括监控模块404，该监控模块404用于对AAU所使用的前端接口协议的协议类型进行实时监控，当其前端接口协议发生变化时，AAU能够迅速从监控状态脱离，进入到判断模块402中进行判断，使得AAU能够采用盲检技术，即无需事先通过其他方式获得BBU的协议配置信息，就可以直接与BBU进行前端接口协议的对接，即实现前端接口的自适应。AAU与BBU之间的距离越远，以上检测方法的优越性越突出，缩短了BBU与AAU之间的连接时间。
在本实施方式中，通过判断模块基于物理层的协议运行状态判断本端的物理层是否与对端的物理层同步，使得切换模块在两端设备的物理层未同步时进行接口协议的切换，以适应通信环境的变化，节省时间成本；而且本端设备不需要事先获取到对端设备的协议配置信息，就能够自动与对端设备进行协议对接，避免了无法接收到对端设备的协议配置信息而无法建立通信连接的情况，从而减少了资源浪费，提升了用户体验度。
不难发现，本实施方式为与第一至第三实施方式相对应的装置实施例，本实施方式可与第一至第三实施方式互相配合实施。第一至第三实施方式中提到的相关技术细节在本实施方式中依然有效，为了减少重复，这里不再赘述。相应地，本实施方式中提到的相关技术细节也可应用在第一至第三实施方式中。
值得一提的是，本实施方式中所涉及到的各模块均为逻辑模块，在实际应用中，一个逻辑单元可以是一个物理单元，也可以是一个物理单元的一部分，还可以以多个物理单元的组合实现。此外，为了突出本申请的创新部分，本实施方式中并没有将与解决本申请所提出的技术问题关系不太密切的单元引入，但这并不表明本实施方式中不存在其它的单元。
本申请实施例涉及的一种电子设备，其包括：一个或多个处理器；存储装置，其上存储有一个或多个程序，当一个或多个程序被一个或多个处理器执行，使得一个或多个处理器实现上述任意一种协议切换方法。
本申请实施例涉及的一种计算机可读介质，其上存储有计算机程序，程序被处理器执行时实现上述任意一种协议切换方法。
根据本申请的实施例，上文参考流程图描述的过程可以被实现为计算机软件程序。例如，本申请的实施例包括一种计算机程序产品，其包括有形地包含在机器可读介质上的计算机程序，计算机程序包含用于执行流程图所示的方法的程序代码。在这样的实施例中，该计算机程序可以从网络上被下载和安装，和/或从可拆卸存储介质被安装。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些物理组件或所有物理组件可以被实施为由处理器，如中央处理器、数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
可以理解的是，以上实施方式仅仅是为了说明本申请的原理而采用的示例性实施方式，然而本申请并不局限于此。对于本领域内的普通技术人员而言，在不脱离本申请的精神和实质的情况下，可以做出各种变型和改进，这些变型 和改进也视为本申请的保护范围。
本文已经公开了示例实施例，并且虽然采用了具体术语，但它们仅用于并仅应当被解释为一般说明性含义，并且不用于限制的目的。在一些实例中，对本领域技术人员显而易见的是，除非另外明确指出，否则可单独使用与特定实施例相结合描述的特征、特性和/或元素，或可与其他实施例相结合描述的特征、特性和/或元件组合使用。因此，本领域技术人员将理解，在不脱离由所附的权利要求阐明的本申请的范围的情况下，可进行各种形式和细节上的改变。

Claims (10)

  1. 一种协议切换方法，包括：
    获取本端的物理层的协议运行状态；
    基于所述协议运行状态判断所述本端的物理层是否与对端的物理层同步；
    在所述本端的物理层与所述对端的物理层未同步时，进行接口协议的切换。
  2. 根据权利要求1所述的协议切换方法，其中，在所述进行接口协议的切换之后，所述协议切换方法还包括：
    重新获得所述本端的物理层的协议运行状态，并在所述本端的物理层与所述对端的物理层不能同步时切换所述接口协议，直至所述本端的物理层与所述对端的物理层完成同步为止；
    保持最后一次切换后的协议。
  3. 根据权利要求2所述的协议切换方法，其中，所述保持最后一次切换后的接口协议步骤之后，所述协议切换方法还包括：
    实时监测所述协议运行状态。
  4. 根据权利要求3所述的协议切换方法，其中，在监测到所述协议运行状态发生变化时，返回所述获取本端的物理层的协议运行状态步骤。
  5. 根据权利要求1至4中任一项所述的协议切换方法，其中，所述协议运行状态是基于所述本端的物理层的同步标识获得。
  6. 根据权利要求1至4中任一项所述的协议切换方法，其中，所述协议运行状态包括：同步状态和失步状态。
  7. 一种协议切换装置，包括：
    获取模块，用于获取本端的物理层的协议运行状态；
    判断模块，用于基于所述协议运行状态判断所述本端的物理层是否与对端的物理层同步；
    切换模块，用于在所述本端的物理层与所述对端的物理层未同步时，进行接口协议的切换。
  8. 根据权利要求7所述的协议切换装置，其中，所述装置，还包括：
    监控模块，用于实时监测所述协议运行状态。
  9. 一种电子设备，包括：
    一个或多个处理器；
    存储装置，其上存储有一个或多个程序，当所述一个或多个程序被所述一个或多个处理器执行，使得所述一个或多个处理器实现根据权利要求1至6任意一项所述的协议切换方法。
  10. 一种计算机可读介质，其上存储有计算机程序，所述程序被处理器执行时实现根据权利要求1至6任意一项所述的协议切换方法。
PCT/CN2020/126842 2019-11-08 2020-11-05 协议切换方法及装置、电子设备、计算机可读介质 WO2021088939A1 (zh)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612166A (zh) * 2011-01-21 2012-07-25 华为技术有限公司 一种数据处理方法、基站系统以及相关设备
CN104053174A (zh) * 2014-05-29 2014-09-17 大唐移动通信设备有限公司 基于fpga基带单元设备rru接口协议自适应的方法及装置
CN109302372A (zh) * 2017-07-24 2019-02-01 华为技术有限公司 一种通信方法、设备及存储介质
US20190273518A1 (en) * 2017-11-14 2019-09-05 Cable Television Laboratories, Inc Systems and methods for delta-sigma digitization

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1223219C (zh) * 2002-11-29 2005-10-12 华为技术有限公司 一种在移动业务交换中心之间的局间切换方法
ATE365418T1 (de) * 2002-12-20 2007-07-15 Motorola Inc Verfahren und vorrichtung zur datenstrombehandlung in mobilem ip
JP2005010958A (ja) * 2003-06-17 2005-01-13 Matsushita Electric Ind Co Ltd 半導体装置
CN101634976B (zh) * 2009-08-27 2012-02-29 中兴通讯股份有限公司 一种为计算机提供蓝牙功能的方法及终端
CN102014463B (zh) * 2009-12-17 2013-08-14 电信科学技术研究院 一种进行接入的方法和装置
CN102820990B (zh) * 2012-02-29 2015-05-13 中兴通讯股份有限公司 业务保护的切换方法及装置
CN103178950B (zh) * 2013-03-08 2017-02-08 大唐移动通信设备有限公司 一种射频远端设备rru光口速率自适应的方法和装置
US20160198021A1 (en) * 2015-01-02 2016-07-07 Citrix Systems, Inc. Dynamic protocol switching

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102612166A (zh) * 2011-01-21 2012-07-25 华为技术有限公司 一种数据处理方法、基站系统以及相关设备
CN104053174A (zh) * 2014-05-29 2014-09-17 大唐移动通信设备有限公司 基于fpga基带单元设备rru接口协议自适应的方法及装置
CN109302372A (zh) * 2017-07-24 2019-02-01 华为技术有限公司 一种通信方法、设备及存储介质
US20190273518A1 (en) * 2017-11-14 2019-09-05 Cable Television Laboratories, Inc Systems and methods for delta-sigma digitization

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